Printing-press.



W. M. KELLY. PRINTING PRESS. APPLICATION I-ILED MAR. 28, 1913. RENEWED FEB. 20. 1914.

1,096,036, Patented May 12, 1914.'

4 SHEETS-SHEET l.

Patented M33112, 1914;

W. M. KELLY.

I PRINTING PRESS. APPLICATION FILED MAR. 28. 1913. RENEWED FEB. 20, 1914.

' Patented May 12, 1914.

4 SHEETSSHBET 3.

W. M. KELLY.

PRINTING PRESS.

APPLIUATION FILED MAR. 2a, 1913. RENE-WEBER. 20, 1914.- 1,()96,O3$, Patented May-12, 1914.

4 SHEETS-rSHEE-T 4.

ED earns rn'rnn ()EFEEGE.

WILLIAM M. KELLY, OF NEW YORK, N. Y., ASSIGNOR TO AMERICAN fIlYiBE EOQEIQEBfi;

COMPANY, OF JERSEY CITY, NEW" JERSEY, A CORPORATION OF NE JERSEYvf} 1-;

PRINTING-PRESS.

Application filed Maren 28,

' Amon the objects of the inventionare to provide a driving mechanism for the bed which will impart to it a uniform and relatively. slow movement during the impression stroke and an accelerated movement on the reverse or return stroke; to provide means for insuring exactness of-regi'ster between the bed and impression cylinder during the printing stroke; and to provide manual control of the movement of the cylinder toward and from the bedso that the cylinder may be instantly moved away from the bed at any point in the travel of the bed in either direction.

My improvements permit the cylinder to be'geared or interlocked in registering rela tion withithe bed during a larger part of the printing strokethan has heretofore been practicable in presses of this type.

Other novel features of the invention will be'described in the following specification takenin connection with the accompanying drawings, in Whichi Figure '1 is a side elevation of a printing press embodying my improvements. .F1g. 2 is a longitudinal section thereof on the line 22 of. Fig. 3. Fig. 3 is a transverse se e tion through the bed operating mechanism. Fig. at is an enlarged elevation of a portion of the opposite side of the press from that shown in Fig.1. Fig 5 is a fragmentary vertical section through one of the bearings for the impression cylinder. Fig. 6 is a detail section on the line 6-6 of Fig. 4:.

Referring to the drawings, 10indicates the frame of the printing press and 11 the reciprocating type bed. The frame 10 has secured to the top thereofa guide and sup-- port 12 for the bed 11. this guide being.

engaged by bearing surfaces on the racks 13 and 14 carried by the bed. The frame 10 also carries the usual air buffers 15 to ab-" "'w. i Specification of Letters Patent. Patentefut 12,, 1913, Serial No. 757,469. Renewed February 20, 1914. snari rt .sorb shock in reversing the bet at' l of its movements.

from this figure that any movement Theframe 10 carries abearin which is arranged the mainfd""" 17, this shaft having niount'ed *0 t end thereof the gear wllj tl ls. Ai drivih'g shaft 19 is journaled in= bearings frame 16 and may be driven -fromf any-sui able source of power. The 'shaft"19 3cariis, within the frame 10, a gea-i '20 whiolrmslis with a gear 21 on a countersha'ft QZthfi counter-shaft 22 being journalcd ini bearingin the frame 10 and carrying agear ea zmt side the frame which meshes w it idle-r gear 24: arranged on a shaft1 25. A impression cylinder, which inay'be titanpreferred construction, is *arra iiged 'on. shaft 26 above the bed llgand is d riven; bymeans of a gear 27 which meshesw the, gear 24. F

It will be observed from that:title gear wheel 18 has a comparatli el y bread-:1 face and that one side of 'th'efac th gear is engaged by thera'c'lf-M Th'ciop'posfi site side of the face of thei ge'ar 1 8fis on 805:.-

moving in the opposite directionito itli opt: of the gear wheel'lS. This isacompliShedh by omitting the teeth foria portion ofrf'the circumference from that sider ofsthe genial 8a which is engaged by the? ail 1 omission of the teeth is indicate Ttftlljl' lo I} tom of the gear 18, as showniiniE-ign The frame 10 carries a 5g r lower part thereof directlyivbel 12 and a frame 29 is arrangcc a gear wheel 31, this gear with the raclr 13 on the bed l, and a rack 32 secured to the guide 28' purpose of clearness the gear dotted lines in Fig. 2, but it'wiyl of the shaft 34: (see Fig. 3).

frame 29 I have arranged in the web of the gear 18 a radial slot, in which slides a block 33, this block carrying a shaft 84 on which is rotatably mounted a block 35. The block 35 is arranged in the vertical slot- 86 in-the frame 29, and thus the shaft 3 1 forms a driving connection between the gear 18 and the frame 29. The slot 36 is at right angles to the guides 12 and 28.

vOwing to the fact that the gear 18, which has a constant speed'of rotation, and the car 31 have driving Connection with the G i lied '11, through the racks 13 and 1 1, during the printing stroke of the bed,'it will be obvious that it is necessary to move the frame 29 during this stroke of the bed in such a manner that the peripheral speed of the. gear81 will be exactly the same as that-0f the gear 18. I accomplish this by means of a face cam 87, having a cam slot 38 therein, and a cam roller 39 arranged in this cam slot and rotatably mounted on an extension As will be observed from Fig. 2 approximately onehalf of the cam slot 38 is concentric-with ,the axis of theshaft 17 and the other half is of varying curvature and the different portions thereof are arranged at different distances from the axis of the shaft 17 so that as the gear 18 rotates-the shaft 3% will be .at a

uniformdistance from the shaft 17 while traversing the lower half of the cam slot 38 and will,- as a consequence, give a simple harmonic motion 'to the frame 29. iVhile the roller 39' istraversing the upper part of the cam slot'38the distance of the shaft 31 from theaxis of the shaft 17 will vary and conse quently the velocity imparted to the frame 29 will be in accordance with this varying distance. I have so designed the upper part of the cam slot 38 that the frame 29 will move at a uniform velocity while the roller 39 is traversing this part of the slot and therefore the gear 31 will also travel at a uniform velocity and "this gear and he gear 18 will cooperate to give to the bed 11 the requisite uniform. motion on the printing stroke. VVhile'the frame 29 is at the ends of its stroke and also while the roller 39 is traversing the lower half of the cam slot 38 the gear 18 is out" of engagement with the {rack 14 on account of a portionof the teeth "being omitted from the gear 18, as hereiningstroke and the gears 18 and 3-1 cooperate above described; The gear 31 therefore drives the bed on therevcrse or non-printto drive the bed throughout the printing stroke and since the racks 13-? and 141 are on opposite sides of the center of the bed it will be seen that a uniformly acting propelling force will be applied to the bed on the printing stroke.

The impression cylinder rotates at a uniform speed and makes two revolutions for each reciprocation of the bed. In order to raise the impression cylinder so that the type will not engage the surface thereof during the reverse movement of the bed, the shaft 26 is arranged in. bearings 40 which are vertically movable in the brackets '11. Screws 1-2 are adjustably arranged in the brackets 11 and carry sleeves which are adjustable thereon and form abutments for springs 1 1 which bear against the under Side of the bearings 40 and tend to movethe latter upwardly. Arranged above the bearings 40-arc the cross bars 15 which are connected with lower cross bars 16 by means of bolts or rods 4-7. The usual toggles 4-8 are provided between the l li'wer ends of the screws and the lower cross bars 1-6 so that when these toggles are in the straightened position shown in Fig. 4 the impression cylinder drawn down into the printing position and when-the toggles are in the open position shown in Fig. 1 the springselsl are permitted to raise the impression cylinder to a position where it will not be engaged by the type.

For the purpose of automatically actuating the toggles 48 I have provided on the shaft 17 cXteriorly ofthe frame 10 a cam plate 49, which is shown in dotted lines in Fig. An. arm. 50 arranged on the pivot 51, secured toithe frame 10, carriesa cam roller 52 which traverses a suitable slot 523 in the cam plate 4-9 and this arm will be rocked on the pivot 51 as the shaft 17 rotates. A shaft 5-1 is mounted in suitable hearings in the frame 10 and carries a lever 55 on one end thereof; The lever has arranged at its lower end a pin 56 adapted to be en ga-ged by a hook 57 on the link 58 which is connected with the arm 50 by a pivot pin 59. The upper end of the lever carries a pivot 60 which connected with the pivot 61 of the toggles 18 by means of a link 2. The opposite end of the shaft-.51 carries an arm 63 which is similarly connected with the adjacent toggles 18 by means of a link (3-1.

As will be seen from Fig. lthe rotation of the shaft 17 causes the arm 50 to be rocked back and forth and so long as the hook 57 is in engagement with the pin 56 the toggles will be uniformly opened and closed in accordance with the movements of the bed 11.

It is sometimes desirable, as for example when the impression cylinder not provided with a sheet of paper,,to have the 1mpression cylinder in the raised position duringthe printing stroke and I have therefore eas es tuated by the foot of the operator of the toggles 48 on the next return stroke of bed, in case the operator does not draw press to acc'omplishthis result." This means consists of a leverwhich is pivoted to the frame 10 at 66 and has connected therewith .a link or rod 67, the latter being attached to any suitable pedal mechanism whereby the roc can be moved up and down by the toot of the operator. Such pedal mechanisms are very common in machine construction and an illustration and description of the same is deemed unnecessary for the purposes of this application. The lever 65' carries a pin 68 which, as shown in Fig. 4, contacts with the lower surface of the end portion of the link 58 so that when the rod 67 is drawn downwardly the pin 68 will be raised and lift the hook 57 out of engagement with the pin 56. It will be observed that the lever 65 is provided with a projection 69 adjacent the pin GBand this projection is adapted to engage the lever 55 and thus rock the lever 55 to open the toggles $8. The hook 57 has a downward projection 70 which will engage the Pill 56 and open the the the rod 67 downwardly far enough-to effect an opening-of the toggles by'the engagement of the projection 69 with the pin as above described. It will thus be seen that I have provided a simple mechanism; for opening the toggles in case of an emergency, and since both toggles are actuated by a single hook 57 there will be no liability of having one toggle open while the other is closed.

For the purpose of having an exact registration and uniform movement of the im p'ression cylinder and the bed 11 during the printing stroke I have provided on the shaft 26 amutilated gear 71, the teeth of which engage the teeth of the rack 72 on the bed 11 during the printingstroke and the blank portion of which is adjacent the rack durimz;

"illider are very slight and therefore the gears 24 and 27, by means of which the shaft- 26 is driven, always remain in mesh. It will be seen that during the printing movement the bed is in mesh with both gears 18 and 31 down movements of the impression cy through the racks 1st and 13 on. its under side and with the mutilated gear 71 on the impression cyhnder through rack 72 on its upper side, thus insuring uniform movement of the bed and impression cylinder and also exactness of register between them.

Having thus described the inventionwhat is claimed as new is:

1. In a printinp press, the combination of a reciprocating bed, a plurality of racks thereon, a constantly rotating gear having a fixed axis and adapted to engage one of said racks on one of the strokes of the bed, a shaft 65 movable in a plane parallel with the bed, a

gear mounted on said shaft and engaging another of said racks throughout both-of the strokes of the bed, means for rotating said first-mcntimied gear, and meansfor giving to said shaft and the gear thereon a reciprocating movement. 1

In a printing press, the combination of a reciprocating bet, a plurality'of' racks thereon, a constantly rotating gear engaging one of' said racks on one-of the strokes of the bed, a shaft adaptedto reciprocate in a plane parallel with the bed, a gear-on said shaft continuously engaging another of said racks, a'lixed rack engaging saidlast-mentioned gear, and means for moving said shaft, when said first-mentionedgear isin engagement with its rack, at avelocity onehalf the peripheral velocity of said gear.

3. In a printing press, the combination of a reciprocating bed, a -lurality of racks thereon, a fixed rack parallel with'one of t ie racks on the bed, a gear arranged between and continuously engaging the fixed rack and the rack on the bed which is parallel therewith, a gear wheel adapted to engage another of said racks, and means whereby said first-mentioned gear is reciprocated by said second-mentioned gear. n

4. In a printing press, the combination of a frame, a reciprocating bed thereon, a pl u rality of racks on said bed, a guide'carried by said frame, a member adapted to reciprocate on said guide, a gear wheel carried by slot and connected with said member to form a driving connection between said wheel and said member, and means for moving said last-mentioned means in said slot so as to give a uniform velocity to said member tl'iroughout the greater portion of one of the strokes thereof.

6. In a printing press, the combination of a frame, a reciprocating bed thereon, a stationary guide on said frame, a member adapted to reciprocate on said guide, means forming a driving connection at all times between said member and the bed, a con-- stantly rotating wheel having a radially extending slot therein,-means movable in said slot and connected with said member to form a driving connection between said .wheel and said member, and'a fixed cam member cooperating with said last-mentioned means to move the latter in said slot so as to give a uniform velocity to said member through the greater portion of one of the strokes thereof.

7. In a printing press, the combination of a frame, a reciprocating bed thereon, a. stationary guide on the frame, a member movable on said guide parallel with the bed and haying aslot at right angles to the guide,

a frame, a reciprocating bed thereon, a statlonary guide on the frame, a member movable on said guide parallel with the bed and having a slot at right angles to the guide, means forming a driving connection at all times between said member and the bed, a constantly rotating Wheel having a radial r slot'therein, means movable in the slots in said wheel and said-member and adapted to form a driving connection between the wheel and member, and a stationary cam cooperating with said means to move the latter in the slot in said wheel so as to cause said bed to be moved at a uniform velocity through-- out the greater portion or one of its strokes.

9. In a printing press, the combination of a frame, a reciprocating bed thereon, a guide on the f 'ame, a fixed rack, a rack on said bed, 5 member movable on said guide parallel with the bed, a gear wheel carried by said. member and engaging said fixed rack and the rack on the bed, a constantly rotating wheel l'iaving a radial slot therein, means movable in said slot and adapted to form a driving connection between the gear and said member, and means for moving said last-inentionet't means in said slot so as to drive said bed at a. uniform velocity throughout the greater portion of one of its strokes. m

10. In a printing press, the combination of a frame. a reciprocating bed. thereon, a plurality of racks on the bed, a fixed rack:

carried by the frame, a guide on the frame,

a member slidable on said guide, a gear wheel carried by said member engaging said fixed rack and one of the racks on the bed, a, constantly rotating gear Wheel adapted to engage another of the racks on the bed during one of the strokes of the bed and having a radial slot therein, means movable in said slot and forming a driving connection between said last-mentioned gear wheeland said member, and a fixed cam for moving said lastanentioned means in said slot so as to give to said member a uniform velocity equal'to one-half the peripheral velocity of said seeond-mentioned gear wheel while the latter is in engagement with the rack on the bed. i

. In testimony whereof I atlix my signature in presence of two witnesses.

WILLIAM Mt KELLY.

Vitnesses: 1 i

J, A. dVA'ISON,

ARTHUR- L. BRYANT. 

